--- src/ga_core.c~	2005-04-12 16:09:24.000000000 -0400
+++ src/ga_core.c	2008-12-27 20:44:10.000000000 -0500
@@ -337,6 +337,7 @@
   newpop->climbing_params = NULL;
   newpop->simplex_params = NULL;
   newpop->dc_params = NULL;
+  newpop->de_params = NULL;
   newpop->gradient_params = NULL;
   newpop->search_params = NULL;
   newpop->sampling_params = NULL;